/*
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.plr.flashcard.client.view.dictionnary;

import com.google.gwt.user.cellview.client.AbstractPager;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.view.client.HasRows;
import com.google.gwt.view.client.Range;

/**
 * A pager that displays the current range without any controls to change the
 * range.
 */
public class RangeLabelPager extends AbstractPager {

	/**
	 * The label that shows the current range.
	 */
	private final HTML label = new HTML();

	/**
	 * Construct a new {@link RangeLabelPager}.
	 */
	public RangeLabelPager() {
		initWidget(label);
	}

	@Override
	protected void onRangeOrRowCountChanged() {
		HasRows display = getDisplay();
		Range range = display.getVisibleRange();
		int start = range.getStart();
		int end = start + range.getLength();
		label.setText(start + " - " + end + " : " + display.getRowCount());
	}
}
